Improvement in spinning-bobbins



UNITED STATES PATENT OFFICE.

WVM. MURDOOK, OF WINOHENDON, MASSACHUSETTS.

IMPROVEMENT IN SPINNING-BOBBINS.

Specification forming part of Letters Patent No. 5l,340, dated December 5, 1865.

To all whom it may concern:

Be it known that I, WILLIAM MURDooK, of the town of Winchendon, in the county of forcester, State of Massachusetts, have invented a certain new and useful mode of holding bobbins securely in a proper position on the spindles; and the followingis a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l shows a perspective view ot' a sof'twood bush so constructed as to form a yielding clamp-socket to embrace all sides and conform to the variations 1n the size ot' the spin dies. Fig. 2 represents a longitudinal section of awood bobbin, showing the hole through it for the spindle, the enlarged cavity in its base, with the yielding clai'np-socket in its place for embracing the spindle. Fig. 3 shows a crosssection through the bobbin at the inner end ot' the bush-clamp socket.

The object ot' my invention is to hold the cops or bobbins to spindles (which may vary a tritle in size) uniformly and evenly in rows on the jenny by the most simple, cheap, eftieient, and durable means.

My invention consists in the application and use ot' tough, springy, soft wood, so constructed as to yield or expand by pressure inside the aperture and embrace a tapering spindle on all ot' its sides at various distances, so that the bobbins in which they are inserted may be used on spindles which vary in size and taper, and will be held irmly in their places for use when set in rows uniformly ot' a height.

To enable others skilled in the art to make and use my improved device for holding the bobbins to the spindles, I will describe it more fully, referring to the drawings and to the letters marked thereon.

The bobbins A are made of anyne-grained white wood, bored through longitudinally and turned ot' any desired size or form, as seen in Fig. 2. In the lower end of the bobbin the orifice is enlarged sutticiently to admit of the insertion ot' a tough, soft-wood bush or clamp socket, a, which is made to tit the orifice d about one-third of its length at the base of the bobbin, the other portion, ot' about two-thirds, being gradually tapered in a conical form, so as to leave space all around it in the cavity d, the hole l1 through the bush or clamp-socket a being much more tapering than the long aperture in the bobbin A, so that by cutting slits c 0 o c in the inner end of the clamp-socket ct, where the hole l) is the most contracted, it allows the hush or socket a to expand and coliform to the size ofthe spindle, while it compresses it on all sides suiciently to hold the bobbin tirmly in its place for use.

The advantages of my invention and iinprovement for securing the bobbins to spindies, as above described, are well known and appreciated in many ot' the factories where many other devices have been used for the same purpose, and it is regarded as the most. simple, cheap, efficient, and durable device known.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. rlhe wooden tube or clamp-socket u, constructed in the manner, and secured to the base ot' spinning-bobbins, as described, so as to operate as and for the purposes herein set forth.

2. The application and useof wood bushings to embrace the spindle, in combination with spinning-Dobbins so constructed as to be susceptible of adjustment uniformly to the spinn ning-jenny, as described.

WM. MURDOOK.

Witnesses P. E. TEseIIEMAoHER, N. W. STEARNs. 

